I have found a plugin conflict that is causing the Featured Image of another plugin (Simple Staff List) to not stick.
Team Rosters always works as intended, so I posted this on the support section for the other plugin, but thought I would post here in case you had an idea.
If only Team Rosters is ACTIVE it works as intended.
If only Simple Staff List is ACTIVE it works as intended.
If both are ACTIVATED the Team Rosters works as intended, but the Simple Staff List Featured Image does not. It allows you pick an image, but it does not stay after clicking Set featured Image. If I disable your plugin, all works as planned.
So, activating Team Rosters breaks the image feature of the other plugin. If you have any idea, I would appreciate it.